Bunn ITB User Manual

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Page 29
TROUBLESHOOTING
A troubleshooting guide is provided to suggest probable causes and remedies for the most likely problems 
encountered.  If  the  problem  remains  after  exhausting  the  troubleshooting  steps,  contact  the  Bunn-O-Matic 
Technical Service Department.
•  Inspection, testing, and repair of electrical equipment should be performed only by qualified service person-
nel.
•  All electronic components have 120-240 volt ac and low voltage dc potential on their terminals. Shorting of
terminals or the application of external voltages may result in board failure.
•  Intermittent operation of electronic circuit boards is unlikely. Board failure will normally be permanent. If
an intermittent condition is encountered, the cause will likely be a switch contact or a loose connection at a 
terminal or crimp.
•  Solenoid removal requires interrupting the water supply to the valve. Damage may result if solenoids are
energized for more than ten minutes without a supply of water.
•  The use of two wrenches is recommended whenever plumbing fittings are tightened or loosened. This will
help to avoid twists and kinks in the tubing.
•  Make certain that all plumbing connections are sealed and electrical connections tight and isolated.
•  This brewer is heated at all times. Keep away from combustibles.
WARNING  –  •  Exercise extreme caution when servicing electrical equipment.
 •  Unplug the brewer when servicing, except when electrical tests are specified.
 •  Follow recommended service procedures.
 •  Replace all protective shields or safety notices.
41581.2 091609